We use the Survey of Thermodynamic Processes and First and Second Laws-Long (STPFaSL-Long), a research-based survey instrument with 78 items at the level of introductory physics, to investigate introductory and advanced students' difficulties with entropy and the second law of thermodynamics. We present an analysis of data from 12 different…

In this paper, a problem set activity focused on understanding and applying unsupervised and supervised chemometric methods for the analysis of biodiesel-diesel blended fuels is described. This problem set was utilized in two upper-level analytical elective courses aimed for junior and senior level students. The data set consists of peak areas…

Offering an advanced organic chemistry course at a primarily undergraduate institution poses a challenge of condensing graduate organic synthesis into one course. This course was designed so students choose and read recent total synthesis papers from the literature in lieu of relying on a textbook or other pre-existing course materials. Following…

Testing is a highly important tool, used ubiquitously in academia, to assess student comprehension and understanding of material. Unfortunately, the emphasis placed on test grades has resulted in a modern epidemic of test-related anxiety, which can have adverse health effects on students. Over time, novel testing strategies have been developed to…

While several engineering and science disciplines, including biology and environmental science, have greatly benefited from adopting a systems thinking approach, its extension to chemistry education is a much more recent advancement. The initial body of literature in this direction has largely surveyed the feasibility for systems thinking in…

Are you frustrated when students focus on "getting the right answer" without understanding why the physics works that way, or even why their own brains came to that conclusion? If so, this might be less about the student and more about the pedagogy--you might be stuck on the "One True Path," a way of thinking "that assumes…

TNT is both toxic and explosive, and therefore, the detection of TNT represents an environmental concern and a security concern. Dogs are often used for detection, but other methods are needed. This laboratory investigates a ruthenium bipyridine ([Ru(bpy)[subscript 3]][superscript 2+]) luminescence-based trinitrotoluene (TNT) sensor. Students will…

Research has shown that the use of practical examples in undergraduate education promotes the retention of historically underrepresented students in STEM majors and lowers achievement gaps within courses. Since many students of color and women aspire toward careers in healthcare and the pharmaceutical industry, efforts to incorporate medicinal…

A laboratory exercise for undergraduate advanced students of enzymology and biocatalysis is presented. Since enzyme assays can be quenched or continuous, this experiment compares the performance of two quenching agents for lactase, in a continuous setup. Enzymatic activity of [beta]-galactosidase ("Aspergillus oryzae") was determined…

This paper explores the extent to which Biology syllabi are open to students' engagement with and acquisition of critical thinking skills in Tanzania's developing country context. It focuses on the Biology syllabus of Ordinary-level secondary education and that of Advanced-level secondary education. The paper reports the findings of a study whose…

We examine students' challenges in determining the number of distinct many-particle stationary states for a system of noninteracting identical particles, focusing on how these insights guided the design, validation, and evaluation of a quantum interactive learning tutorial (QuILT) to aid students' understanding. Specifically, we focus on systems…

The Energy and Momentum Conceptual Survey (EMCS) is a multiple-choice survey that contains conceptual problems involving a variety of energy and momentum concepts covered in a typical introductory physics course for science and engineering majors. Prior studies suggest that many concepts on the survey are challenging for introductory physics…

Science, Technology, Engineering, and Mathematics (STEM) instruction in the United States has been a major focus of educational reform since the release of the PISA rankings in 2000, which showed that the U.S. was behind many other countries on the international stage in the areas of Science and Math. Students are also leaving the "STEM…

Supply of students to 'the science pipeline' remains an important imperative for economic policy, and for individual life chances. In England, Science courses from age 14-16 have been divided into 'Double' and (extended) 'Triple' Science. This article draws on data from 6,053 students to investigate the effects of science course designation on…

Recently, interest in understanding the prospects of virtual environments, specifically virtual reality laboratories (VR Lab) -- those that involve a first-person practica experience via a desktop computer or head-mounted display -- in science education has increased. Seemingly ingrained in the process of implementing a VR Lab is a supposition of…